Combination turn signal and hazard warning flasher

Details Combination turn signal and hazard warning flasher Combination turn signal and hazard warning flasher

1990-06-11

1991-12-10

Ng, Jin F.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340471, B60Q 1100

Patent

active

050722107

ABSTRACT:
An electronic turn signal and hazard warning flasher of the kind generally used in automobiles. The flasher is composed of a lamp outage sense resistor, a pulse generator, and an outage sense deactivation circuit which deactivates the lamp outage feature of the pulse generator. The lamp outage deactivation circuit, which receives feedback signals from the turn signal lamps, can be installed in a variety of flashers to deactivate the lamp outage feature, and also can take on a multiplicity of forms. In one form, the outage sense deactivation circuit consists of a resistor and a switch control in parallel between the sense resistor and the pulse generator. In another form, the circuit consists of first and second resistors and a switch control.

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MOTOROLA, Motorola UAA1041 Silicon Monolithic Integrated Circuit, Internal block diagram and applications information (7-1986).
TELEFUNKEN, Telefunken U243B Monolithic Integrated Circuit, chip data sheets (date unknown).
CHRYSLER, Turn Signal/Hazard Warning System, with separation of functions and without cornering lamps-diagram (6-1988).

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